We must do ____ the people want us to do..
It is amazing that the little boy can swim _____ the river _____ 100 metres wide.
There are _____ to show that a new, different city is coming out of its dark past.
As is reported, it is 100 years _____ Qinghua University was founded.
There is clear evidence _____ the most difficult feeling of all to interpret is bodily pain.
If you keep on your research, you'll _____ the result in time.